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Method of Sampling.

Description: Patent for improving methods of boring wells by "raising the cuttings from an earth boring drill to the surface" (lines 70-71), including illustrations.
Date: July 20, 1920
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Paint.

Description: Patent for paints for roofs and for barns to prevent leaks and efficient in preserving the material of buildings at a relatively small costs.
Date: July 20, 1920
Creator: Watson, Grover C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pneumatic Tire.

Description: Patent for improvements in tires for vehicles that has a cushion that takes the shocks of travel.
Date: July 20, 1920
Creator: Drouet, Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Signal.

Description: Patent for a signal to be placed on the fender of a motor vehicle to indicate to other drivers the intended direction the vehicle is going.
Date: July 20, 1920
Creator: Cochran, Carl T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Swingletree

Description: Patent for a swingletree that equalizes the strain of the draft animal when the traces are connected in an irregular manner.
Date: July 20, 1920
Creator: Bosse, William F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Signal-Actuating Mechanism for Railways

Description: Patent for an improved signal actuating mechanisms for railways. When the train cars reach an operating mechanism, a flag will be raised where pedestrians or cars cross, and cause a signal to be repeated until the train passes.
Date: July 20, 1920
Creator: Bashara, Samuel Farris
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Trough-Valve.

Description: Patent for improvements in animal watering troughs that has an automatic float control valve in connection with the trough.
Date: July 20, 1920
Creator: Striegler, Fritz
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Attachment for Rotaries.

Description: Patent for rotary well-drilling machinery where the "ring or bushing to rotate independently of the table and the present invention is directed to means for accomplishing the rotating effect." (line 24-27)
Date: July 20, 1920
Creator: Johnston, Horace G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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